Diagnostic Test

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
NOTE:
Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
1. Turn the ignition on.
  NOTE:
  Make sure the battery voltage is between 10.0 and 16.0 volts.
2. With the scan tool, read the module status.
  NOTE:
  Check the BCM for any active CAN hardware DTCs. Perform DTC before proceeding.
  
  Does the scan tool indicate that the module is active on the bus?
  
  Yes
  - The no response condition is not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
  No
  - Go To Step 2
CHECK THE (A27) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT
1. Turn the ignition off.
2. Disconnect the TPM Module harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (A27) Fused B(+) circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To Step 3
  No
  - Repair the (A27) Fused B(+) circuit for an open or short.
  - Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (Z905) GROUND CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Using a 12-volt test light connected to 12 volts, check the (Z905) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To Step 4
  No
  - Repair the (Z905) Ground circuit for an open.
  - Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (D64) CAN C(+) BUS CIRCUIT FOR AN OPEN
1. Disconnect the TIPM C1 harness connector.
2. Measure the resistance of the (D64) CAN C Bus (+) circuit between the TIPM C1 harness connector and the TPM Module harness connector.
  Is the resistances below 5.0 Ohms?
  
  Yes
  - Go To Step 5
  No
  - Repair the (D64) CAN C(+) Bus circuit for an open.
  - Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (D65) CAN C(-) BUS CIRCUIT FOR AN OPEN
1. Measure the resistance of the (D65) CAN C Bus (-) circuit between the TIPM C1 harness connector and the TPM Module harness connector.
  Are the resistances below 5.0 Ohms?
  
  Yes
  - Replace the Tire Pressure Monitoring (TPM) Module in accordance with the Service Information. Refer to MODULE, TIRE PRESSURE MONITORING (TPM), REMOVAL .
  - Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the (D65) CAN C(-) Bus circuit for an open.
  - Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .